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CBSE Class 11-science Answered

1.a.Applying the concept of viscosity explain the occurence of cardiac arrest 
 
b.What is the role of viscosity in a hydraulic jack used to lift a heavy load like car etc..
 
c.What is the role of viscosity in automatic door closers 
 
d.What is the role of viscosity in shock absorbers used in cars,scooters.motor bikers etc.
 
e.Glass is considered as highly viscous liquid, if it were not, what would have happened?
Asked by Ginni2k | 11 Nov, 2016, 10:11: PM
answered-by-expert Expert Answer
Dear Ginni2k@gmail.com

Thanks for asking us a question in Ask the Expert section of TopperLearning.com.

We cannot entertain more than 5 questions in a single question per day. In case of multiple questions within a query, please post each question individually and let us know where you are getting stuck so that we would be able to explain things better.
 
Answer to your first question is given below:
 

Changes in blood viscosity in vivo are linked with changes in flow velocity in the middle cerebral artery.

High viscosity early after cardiac arrest may lower cerebral blood flow and may contribute to secondary brain injury.

Further studies are essential to determine the optimal viscosity during the different stages of the post cardiac arrest syndrome.



Regards

Topperlearning Team.
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